apropos/ˌæprəˈpəu; ˌæprə`po/ adv, adj [pred 作表语](in a way that is) appropriate or relevant to what is being said or done （与正在说的或做的）适宜或有关, 恰好, 及时 You'll find the last paragraph extremely apropos. 你会觉得最後一段文字极为中肯.
牛津英汉双解词典